Snowplow



July 15, 1930. c. A. CARPENTER 1,770,587

SNOWPLOW Filed April 15. 1929 3 sheets-sheet 1 July l5, 1930. c. A. CARPENTER 1,770,587

SNOWPLOW Filed April 15. 1929 3 Sheets-sneer 2 N lli! 7.1

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July l5, 1930. c. A. CARPENTER 1,770,587

SNOWPLOW Filed April 15, 1929 3 Sheets-Sheet 3 Patented July 15, lg3d PATENT OFFICE CHARLES A. CARPENTER, 0F BALDWINSVILLE, NEW YORK sNowPLow Application med April 15,

This invention relates to a new and im provedI snow plow.

j In a great many parts of the country there is a considerable period. of the year during which sufficient snow falls to seriously interfere with the regular traffic on roads and high-ways, particularly on those high-ways which are outside of corporate lengths.

As the roads of the country, both winter and summer, are used to such a considerable extent that it is very'desirable that they be kept clear of snow so that traflic upon them will not be inconvenienced or interrupted.

In order to accomplish this, various types of machines have been developed to remove an accumulation of'snow from a high-way, some by attaching to a motor vehicle, a plow member which will push thesnow side-ways off of the high-way, another of a rotary blade pipe which picks up the snow as they advance and throw the same forwardly and laterally. Both of these types of snow removers are open with the serious objection that the snow is removed only as far as the edge of the high-way, with the result that there is a limit to the effectiveness of the apparatus so that if the fall of snow is heavy and continuous a time will come when they cannot accomplish the object desired.

The main object of my invention is to provide a snow removing device which will pick up the snow from a high-way and deposit the same laterally of and a considerable distance from the edges of the high-way so that the object 'desired' may be obtained, irrespective of the amount and relation of a fall of snow and irrespective of how'many times it is desired to send the snow removing apparatus over a given high-way.

Another object is to provide an apparatus which will permit thedeposit of the removed snow on either lside of the high-way as desired.

Another object is to provide a device which may be runi` at a uniform speed and which will remove' a uniform amount of snow in weight., irrespective of whet-her the snow to be removed is lightly packed or densely packed. l

Other objects and advantages relate to 1929. serial No. 355,282.

the size, shape and arrangement of parts, all as will more fully appear from the following description, taken in connection with the accompanying drawings, in which:

1Figure l is a top plan view of my improved p ow.

Figure 2 is a section on line 2--2 of Figurel 6.

Figure 3 is a perspective view, partially Vbroken away, of my cutting blade assembled.

Figure 4 is a front elevation of my device.

Figure 5 is a section on line 5-5 of Figure l.

Figure 6 is a section on line 6-6 of Figure 4. Figure 7 is a section on line 7-7 of Figure 4.

Figure 8 is a section on line 8-8 of Figure 6.

Figure 9 is a section on. line 9--9 of Figure 4.

For the purpose of explaining the operation of my device, I have here shown in Figure l an automotive vehicle 1 equip ed with a six cylinder gasoline engine 2, t e usual transmission 3 and the usual steering wheel 4.

Inasmuch as the operation of an automotive vehicle driven by a gasoline engine and having a transmission providing diierent speeds is well understood, I will not here describe the driving and steering connection of the automotive vehicle 1 shown.

For the purpose of supplying power for the operation of the cutting and conveying blade of my device, I provide, adjacent the rear end of the chassis of the Figure 1, a Second six cylinder gasoline engine `5 connected through a transmission 6 to a shaft 7 journaled in the frame 8 of the vehicle 1. v

Shaft 7 is provided with a gear, not shown, meshed with one end of an endless chain 9. A second shaft 10 has one end journaled in a bearing 11 fixed to the vehicle 1 adjacent the rear` end thereof, and has its other en-d journaled in a bearing 12 fixed to the vehicle 1, adjacent the forward end thereof. Shaft 10 extends rearwardly through the bearing 11 and has fixed thereto a gear, not shown, with which the chain 9 is in mesh so that rotary movement of the shaftl 7 effected b the engine 5, will be transmitted through 9 to shaft 10.

Shaft extends forwardly through bearing 123and has fixed on its forward end a To'the forward end of a side member 13 which is secured to a sill 14 of the chassis of vehicle 1, as by a clip 13, I secure as by rivets 14 a vertically extending channel 15, having a side mem r 13 and having another portion extending downwardly be ow side member 13. Channel 15 is securedin position by a brace 16 havi one end secured to the upper end of channe and having its other end secured to side member 13. A complementaiy brace 17 has one end secured to the lower en of the channel 15 and has the other end secured to the side member 13.

A similar channel 18 is secured to the forward end of a companion side member 19 and is held in position in a similar manner, by means of an upwardly extending brace 20 and a downwardly extending brace 21, said braces 20 and 21 aving one end secured to channel 18 and the other end secured to side member 19. Side member 19 is held in position on the other sill 19 of the chassis of vehicle 1, as by a clip 20.

A cylindrically shaped cutter housing is supported in housing 22. The upper end of cutter housing 25 is in communication with a laterally extending conduit 26 and with an oppositely extending discharge opening 27. A curved gate 28 is pivotally mounted on the inner end of conduit 26 by means of a shaft 29, journaled in bearings 30 and 31 in conduit 26. The shape and size of gate 28 in relation to conduit 26 and discharge opening 27 is such that when the upper end of gate 28 is in the raised position, as indicated in heavy lines on Fig. 5, the opening from cutter housing 25 into conduit 26 will be unobstructed, while vthe opening from cutter housing 25 to discharge opening 27 will be closed. When the gate 25 1s moved about its pivot into the position shown by dotted lines on Fig. 5, the opening from cutter housing 25 to conduit 26 will be closed, and the opening from cutter housing 25 to discharge opening 27 will be unobstructed. For the purpose of providing a convenient means for pivoting gate 28, I provide a crank 32 on the inner end of shaft 29, and I also provide on shaft 29, a disc 33, having a pair of spaced slots 34 and 35 in its periphery. A keeper 36 is pivotally mounted on channel 18 and is spring pressed downwardly by a spring 37 into engagement with the slot 34 or 35 with which it may be in registration. The relation of parts is such that when keeper 36 is seated in slot 34, the gate 28 will be held securely in the position shown in heavy lines on Fig. 5, while when the keeper 36 is seated in slot 35, the gate 28 rtion extending upwardly above will be held securely in the position shown in dotted lines on Fig. 5.

To the upper half of the cutter housing 25, I secure a forwardly and outwardly flarmg hood 38 for the purposeof directing the movement of any material encountered by hood 38 inwardly and downwardly towards cutter housing 25.

A companion outwardly and forwardly Haring hood 39 has its upper ends pivotally mounted on housing 22 by means of pivot pins 40 and 41, such pivot pins 40 and 41 being disposed in a horizontal plane passing through the center point of cutter housing 25. Hood 39 is adapted to direct the movement of the material encountered by it into cutter housing 25.

Hood 39 is pivotally mounted on housing 22 s0 that the lower end thereof may be raised or lowered as desired, with reference to the surface of the road or ground upon which my device is being used. For the purpose of supporting the hood 39, I provide a plate 42 secured to the bottom surface thereof as by rivets 43. Plate 42 has secured to its forward end, a forwardly extending scraper plate 44 as by rivets 45. A bar 46 hasits forward end secured to plate 42 as by rivet 45 and has its rear end secured to plate 42 as by rivet 47, an angle iron 48 being positioned between bar 46 and plate 42. A curved link 49 has its forward end pivotally mounted on bar 46 and has its rear end vertically extending and pivotally secured to the rear end of a link 50. Link 50 is secured to a shaft 51 which has one end journaled in channel 15 and the other end journaled in channel 18. In spaced relation to link 50, I provide a link 52 secured to shaft 51 and pivotalIy connected to curved link 53, the lower end of link 53 bein pivotally mounted on a bar 54 secured to tio undersurface of plate 42. An operating lever 55 has its lower end secured to shaft 51 so that the rearward movement of the upper end of lever will cause shaft 51 to be rotated, which in turn will cause the downward movement of links 50 and 52 with a resulting downward and forward movement of links 49 and 53, and these movements of links 49 and 53 will cause the lower end of hood 39 to be carried forwardly and upwardly, such movement being permitted through the pivotal movement of hood 39 about its pivots 40 and 41.

For the purpose of securing hood 39 in a selected one of a plurality of positions in relation to the road upon which my device is used I provide, as perhaps may best he seen from Fig. 8, a plurality, in this case shown as four, of notches 56 in a plate 57 secured to brace 16 as by rivets 58, which notches 56 are adapted to be engaged by lever 55. For the purpose of removing any strain from the parts just described, which are adapted to raise hood 39, whensuch hood lll lll

y shown as two, of outwardly extending blades 39 is in the lowered, which is the usual operative position, I provide on housing 22, a stop 59 secured thereto as by rivets 60 and adapted to be engaged by angle 48 when hood 39 is in the lowered position.

On the forward face of cutter housing 25 is secured a cross bar 61 disposed in a horizontal plane slightly above the central line of cutter housing 25. To the undersurface of bar 61, I secure as by bolts 62, a bearing 63 coaxial with cutter housing 25.

A channel 64 has one endsecured to the forward end of side member 13 and has the other end secured to the forward end of side member 19 for the purpose of securing such side members rigidly in spaced relation. A channel 65 is secured to the upper surfaces of the forward ends of side members 13 and 19. A bearing 66 is secured to the upper surface of channel 65, as by bolts 67, said bearing 66 being coaxial with bearing 63.

A shaft 68 has its rear end journaled in bearing 66 and has its forward end journaled in bearin 63, the forward end of shaft 68 extending irough and beyond -bearing 63. Adjacent the forward face of bearing 66 I spline or otherwise secure to shaft 68 a gear 69 disposed in the same planeas gear 13. An endless `chain 70 is in mesh with gears 13 and 69. A rotary cutter 71 is secured to shaft 68 and is positioned in cutter housing 25. The particular construction of cutter'71 will presently be described. On the forward end of shaft 68 I secure as by bolts 72, a rotary supplementary cutting member 73 having a plurality, in this case 74 and 75, said blades being formed with reversed curves to assist the cutting action.

My rotary cutter 71 comprises a circular back plate 7 6 having secured to the rear face thereof as by rivets 77, a circular plate 78, which plate 78 is splined or otherwise secured to shaft 68, a set screw 79 being provided to prevent any relative endwise movement of plate 78 on shaft 68. On back plate 76, provide a plurality, in this case shown as six, of spiral angles 8O secured thereto as by rivets 81. As perhaps may best be seen from Figs. 3 and 5, spiral angles 80 are in spaced relation on back plate 76, with their outer ends, flush with the periphery of plate 76 and, spaced apart a considerably greater distance than are their inner ends which are adjacent the central point of plate 76. The distance from the top surfaces of the inner ends of angles 80 to the face of back plate 7 6 gradually increases from the outer ends of angles 80 to the inner ends thereof.

As perhaps may best be seen from Figs. 3 and 4, I secure on the upper surface of each of the angles 80 as by rivets 82 a helical cutting blade 83, concave-convex in shape. The outer ends ofblades 83 are spaced from the outer edge of back plate 76. The inwardly extending edges of blades 83 which are secured to the angles 80 -conform in shape to the curvature o such angles.

The opposite inwardly extending edges of blades 83 conform substantially to the curvature of the adjacent angles 8O but depart therefrom to some extent so that the distance between such edges of plates 83 and the adjacent angles 80 is greater at their outer ends than at their inner ends. For the purpose of securing blades 83 rigidly in position, I provide posts 84 having one end secured to the back plate 76 and having the other end ,secured to the outer edge blades 83, one post 84 for each blade 83.

I also prefer to provide on the inwardly extending free edges of blades 83, a beveled edge cutting blade 85, secured in position as y by rivets 86.

Operation When it is desired to remove from the highway an accumulation of snow, the engines 2 and 5 are started in the usual manner, the transmission 3 manipulated to engage the proper gear to insure the forward progress of the snow plow and the transmission 6 manipulated to impartrotary motion to the shaft 7. The rotary` motion of shaft 7 will be transmitted through chain 9,

,shaft 10, gear 13, chain 70, and gear 69 to shaft 68, and inasmuch as the cutter 71 and the complementary cutter 73 are secured to shaft 68, they will be caused to rotate.

When the device moves forward the hoods 38 and 39 will engage the snow so as to carry it inwardly into contact with cutter 7 5, the

vaction of which will loosen the snow which discharge opening 27, depending upon the position in which the operator had previously placed the gate 28.

I have found that the particular design of my helical cutting blades 83 and the particular positions with reference to each other, to the angles 80 and to the back plate 76 enables the cutter 71 to remove and transport a greater amount of snow during a given period of timethan has hitherto been possible with any rotary cutters heretofore known. This particular construction also permits my device to be used at a uniform speed of travel irrespective of whether the snow is moist, heavy and compact or light, dry and loose.

It will be understood that although I have here shown my cutter 71 as car ng six cutting blades 83 yet the number o such blades may be varied provided only the shape and relative relation of each to the other and to the back plate 76 be retained.

It will also be understood that the particular type of chassis upon which my cutter 71 is mounted ma be varied, as may be the means for pro ucing the rotary motion of such cutter, for although I have shown and described a specific structure and form of art as exemplifying an embodiment of my invention, I do not desire to restrict myself to the exact size, shape or relation of parts, as various changes may be made within the sco of the appended claims.

lplaim:

1. In a device of the class described, a. rotary cutting and conveying element, comprising a (plurality of concavo-convex blades arrange in spaced relation about a common axis and supported on a back plate, said blades having their inner ends spaced a greater distance from the b'ack plate than are their outer ends, the adjacent outer ends of said blades being spaced a greater distance, one from the other, than their corresponding inner ends, and means for rotating the back plate.

2. In a device of the class described, a rotary cutting and conveying element, comprising a plurality of concavo-convex blades arranged in spaced relation about a common axis and supported on a back plate, said blades having their inner ends spaced a gileater distance from the back plate than are t eir outer ends, the adjacent outer ends of said blades being spaced a greater distance, one from the other, than their corresponding inner ends, and the concave edges of said blades being connected to said back plate by spiral imperforate plates, and means for rotatin the back plate.

3. n a device of the class described, a rotary cutting and conveying element, comprising a plurality of concavo-convex blades arrange in spaced relation about a common axis and supported on a back plate, said blades having their inner ends spaced a greater distance from the back plate than are their outer ends, the adjacent outer ends of said blades being spaced a greater distance, one from the other, than their corresponding inner ends, the convex edges of said blades having secured thereto concavo-convex cuttn blades with their convex edges beveled, an means for rotating the back plate.

4. In a device of the class described, a rotary cutting and conveying element, comprising a plurality of concavo-convex blades arranged in spaced relation about a common axis and supported on a back plate, said blades having their inner ends spaced a greater distance from the back plate than are their outer ends, the adjacent outer ends of said blades being spaced a greater distance, one from the other, than their corresponding inner ends, the concave ed es of said blades being connected to said ack plate by spiral imperiorate blades, the convex edges of said lades having secured thereto concavo-convex cuttin blades with their convex edges beveled, an means for rotating the back plate.

5. In a device ofthe class described,arotary cutting and conveying element, comprising a plurality of concavo-convexblades arranged 1n spaced relation about a common axis and supported on a back plate, said blades having their inner ends spaced a greater distance from the back plate than are their outer ends, the adjacent outer ends of said blades being spaced a greater distance, one from the other, than their corresponding inner ends, and the concave edges of said blades being connected to said back plate by spiral imperforate plates, said plates extending outwardly beyond the outer ends of the blades, and means for rotating the back plate.

In witness whereof I have hereunto set my hand this 4th day of April, 1929.

CHARLES A. CARPENTER.

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